What's new in GENESYS 2002.09

Genesys 2002.09 also includes all features found in GENESYS 8.11 and earlier versions. See our Comparison Table of Recent Versions for an easy reference.

GENESYS 2002.09, introduces many enhancements for power amplifier design, antenna design, and general RF and microwave system and circuit design.  This release continues the Eagleware tradition of rapid technology development for the RF and microwave design engineer.

Power Amplifier Design

Power amplifier design is one of the most challenging areas of RF and microwave engineering.  To make the design easier, a wide range of new features are included in V2002.09 including load-pull based PA design, Motorola-verified LDMOS models, large-signal s-parameters, and new lumped and distributed circuit models.

Load-Pull Based PA Design

GENESYS now fully supports analysis using FOCUS Microwaves and Maury Microwave load-pull data files.  These files contain power device characterization in the form of power-versus-reflection coefficient.  These files are used to design terminations for a desired output power, gain, gain compression, intermodulation, etc., and are plotted on a Smith Chart in GENESYS, as shown in the figure.  Complete with user-selectable contour smoothing and thin-plate spline interpolation.

Make design tradeoffs based on any set of load pull parameters 
such as gain, efficiency, or adjacent channel power

Motorola LDMOS Support

The Motorola Electro Thermal (MET) model for RF LDMOS transistors includes full characterization of electro-thermal phenomena including device self-heating impact on performance.  This model, designed by Motorola, is tailored for high power RF LDMOS transistors used in wireless base station applications.  For distribution authorization, strict adherence to design guidelines is required.  Eagleware underwent extensive testing by Motorola to verify convergence and other modeling criteria.  A full library of transistor models complete with package parasitics and device parameters is included.

Large Signal S-Parameters

New measurements now display large-signal s-parameters measurements.  Calculated from node voltages and branch currents, these parameters allow the designer to view the change of circuit characteristics as a function of signal level.  For example, you can look at the change in amplifier input impedance as the input level is increased.  More advanced parameters, such as large-signal stability, can be calculated using the large signal s-parameters.

Antenna Design

Patch antennas are used in an ever-increasing range of wireless applications.  The low cost of manufacturing and the small size are ideal for hand-held devices.  GENESYS V2002.09 extends the power of antenna electromagnetic simulation to include the display of antenna patterns.  Fully integrated into the GENESYS environment, you can see patterns from configurations of metal on multiple levels, even helping you understand unintended trace radiation.

Antenna pattern plots are created for arbitrary topologies using data calculated from EMPOWER, the GENESYS planar electromagnetic simulator.  You have the ability to simulate free-space and substrate-embedded antenna designs as well as conventional patch antennas.  Antenna pattern plots will display in 3D space by sweeping azimuth and elevation. 

The EMPOWER far-field radiation viewer data describes the electric field patterns in the far-zone region radiated from a structure.  The far-zone is defined as the region where 2lR/l » 1, where R is the distance from the structure and lambda (l) is the wavelength of the signal exciting the structure. This means that the distance from the antenna is many wavelengths.  Far-field radiation patterns are described in a spherical coordinate system, where phi is the angle on the xy plane from the positive x-axis, and theta is the angle from the vertical (positive z) axis.

New Models

The range of accurate models keeps expanding in GENESYS.  V2002.09 now includes:

Microstrip

• Arbitrary-angle, optimally mitered bend automatically determines the best miter to minimize return loss due to bend discontinuities.  This allows the design of arbitrary microstrip topologies while maintaining proper matching characteristics.
• Asymmetric TEE allows all three branches of the tee to be different widths. 

System

• 1-3 to 1-20 way RF Switches allow you to more easily model complicated systems with many branches, including inter-branch isolation effects.
• Frequency Multiplier allows the modeling of high order multipliers, including the multiplication effects on phase noise

Nonlinear Devices

• Motorola MET model for LDMOS devices.  Includes the library of over 60 Motorola device and package models
• User defined non-linear modeling using the SPICE-like POLY function with voltage controlled and current controlled current sources

Passives

• Multi-coupled inductors

• Impedance inverter

• Frequency independent complex impedance

TEST LINK

Support has been added for data acquisition from more than ten analyzers and oscilloscopes in the new version:

• Spectrum analyzers-Agilent E7400 series, L1500A; Ando AQ317; Anritsu MS2380, Rohde & Schwartz FSU

• Network analyzers-Anritsu MS4630B, 54xxA series scalar analyzers

• Oscilloscopes-Tektronix 11000, DSA60x; Yokogawa DL1740/DL7100/DL7200

• Noise figure meters-Agilent NFA series, HP8970B, HP85719A noise figure card in HP859xE frames  

User Interface

A host of customer requested user interface improvements are part of V2002.09.  Below are a few of more than 200 improvements that have been made throughout GENESYS.

Schematic Capture

• Grounds and ports keep-connect during component moves

• Symbol labels are true text (not stroked lines) 

• Text size and color are settable 

• Status bar shows part parameter values and other information

Outputs

• Global properties allow user to set default colors and other characteristics

• Titles can be automatically added to graphs

• Tables support scrolling with the mouse wheel

• Graph traces can be set to any custom color

Layout

• Improved polygon editing (backspace deletes previous vertex)

• Many keystroke shortcuts were added

• Gerber import loads multiple layer files at one time

• DXF file import and export is improved

Synthesis

• M/FILTER has improved variable setup